(19)
(11) EP 1 046 791 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.08.2002 Bulletin 2002/34

(43) Date of publication A2:
25.10.2000 Bulletin 2000/43

(21) Application number: 00201231.8

(22) Date of filing: 04.04.2000
(51) International Patent Classification (IPC)7: F01L 1/18, F01M 9/10
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 23.04.1999 US 298390

(71) Applicant: Delphi Technologies, Inc.
Troy, MI 48007 (US)

(72) Inventors:
  • Faville, Joyce
    Avon, New York 14454 (US)
  • Greene, Cynthia
    Rochester, New York 14619 (US)

(74) Representative: Denton, Michael John 
Delphi Automotive Systems, Centre Technique Paris, 117, avenue des Nations, B.P. 60059
95972 Roissy Charles de Gaulle Cédex
95972 Roissy Charles de Gaulle Cédex (FR)

   


(54) Rocker arm assembly lubrication


(57) A rocker arm assembly (34) includes a U-shaped rocker arm (36) defined by a bottom wall (50) and two side walls (52, 53) depending upwardly therefrom where the side walls each have a central axle opening (56) to support a transversely extending roller axle (58). A roller (42) for rolling against a cam is rotatably supported on the roller axle through a roller bearing (60). The bottom wall of the rocker arm has a centrally located opening (54) providing clearance for rotation of the roller and a spherical socket (62) at a first end of the rocker arm to interface with an upper rounded end of a hydraulic lash adjuster. An oiling channel (70) is provided along the bottom wall extending from the spherical socket, towards the roller, to terminate at the centrally located opening for channeling oil expelled from the hydraulic lash adjuster, wherein reciprocation of the rocker arm flings oil from the channel to the roller and roller bearing for lubrication.






Search report